PK People Easily in RuneScape

The art of Player Killing, known as PKing, is an easy art to master. If you want to know how to PK, read on.

Steps

Become a pure. Only train Magic, Ranged, and Constitution, and make sure the rest of your combat stats are at 1. You will become a hybrid pure.
Go to a high-risk Wilderness world. Make sure you aren't in the Wilderness when you log in.
Get a full inventory of wine or monkfish. Wine is a good choice as it is cheap and heals 110 lifepoints. Get the best short bow you can equip, and wear armor that doesn't hinder your ranged or magic abilities. Make sure you wear a good amulet and cape.
Go to a popular killing spot in the Wilderness where your victim cannot escape easily. Attack the unsuspecting player and run if they are using melee. Do not let up, and don't try to heal until you are in real danger.

First, you will need to become powerful. If you already are, then read on.
After training to a combat level of at least 70, buy yourself some nice armor. Rune armor is recommended, as is Barrows armor. Dragon and trimmed armors are not recommended, seeing as they are too expensive compared to their stats.
Buy yourself a dragon weapon. The longsword is recommended, although the scimitar will work also.
Buy yourself some monkfish or other high-healing foods. You need these to keep you alive.
Buy yourself potions on the Grand Exchange. It helps to buy every potion that starts with the word "Super".
Once you are prepared, log onto a crowded world and start killing like crazy in the Wilderness.